EngineeringFebruary 1, 2026
Behind the feed: keeping things fast at scale
When the feed feels instant, people stay—and when it stutters, they leave.
We optimize for perceived performance: images load progressively, lists virtualize where possible, and we avoid blocking the main thread on navigation.
What is next
Expect more prefetching, smarter image formats, and continued work on battery-friendly animations as we expand to more devices and networks.
